Error

[Husam82]

Any solution for this problem, please

[jmcouffin]

not sure about the overall cpython implementation of pyRevit whitin RPS, but in pyRevit scripts you need to declare the cpython usage like so:

#! python3

[ay-ex]

Sounds to me like it is related to some pyrevit.forms (e.g.: SelectFromList) with wpf not loading: #155 (comment)

@jmcouffin the error from pyrevit.forms is not necessarily about CPython, in:
C:\ProgramData\pyrevit_4.8.14\pyrevitlib\pyrevit\forms\__init__.py

if PY3 and not IRONPY340:
    raise PyRevitCPythonNotSupported('pyrevit.forms')

any unexpected python interpreter there will raise that error. 🤔